MP4-boxar
Ersätter metadata-boxar som stöds med free-boxar av samma storlek.
Replace supported MP4 metadata boxes with same-size free boxes while preserving video data offsets.
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MP4 · On-device
MP4 files contain structural boxes. This tool replaces supported udta, meta and ilst metadata boxes with same-size free boxes, leaving all media byte offsets unchanged.
It does not re-encode video or audio. Open and play the downloaded copy before publishing.
En bearbetningsomgång
Ersätter metadata-boxar som stöds med free-boxar av samma storlek.
Videodatans bytepositioner flyttas inte.
Öppna den nedladdade kopian innan du använder den i ett projekt.
Rekommenderat arbetsflöde
Use a file below 15 MB.
Replace supported metadata boxes without shifting other boxes.
Verify duration, picture and sound in the download.
Fördjupad guide
MP4 index tables refer to byte positions of audio and video samples. Replacing supported metadata with same-size free boxes leaves those positions unchanged.
Fördjupad guide
Play the new file from start to finish and check its sound. Metadata in unsupported structures or within frames may remain.
FAQ
No. It is processed on your device.
No. Audio and video payload stays at the same byte offsets.
No. Only supported boxes; some UUID or track-specific data can remain.
Yes. Play the downloaded copy and verify sound, picture and duration.
No. A watermark in a frame is not an MP4 metadata box.
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